Question

The allotropic forms of sulphur can be grouped into ______ classes.

Answer 1

The allotropic forms of sulphur can be grouped into three classes.

Explanation:

Sulphur exhibits allotropy and exists in many forms. These can be classified into three groups:

1. Homocyclic S_n rings (like S₈),
2. Catena-S_n chain polymers, and
3. Unstable small S_n molecules (n = 2 to 5) found in vapour and liquid states.